Odd Quarantine Event

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I had an issue with a Hanna checker also (but I've only had one unit to test). I agree, getting salinity/specific gravity measuring tools to agree with one another is difficult. I recently discovered that the German glass hydrometer that I relied on all these years has been changed, the one brand I saw no longer has a range from 1.0000 to 1.0040, it seems to only read in the range of marine aquariums.

Have you seen my article?

Measuring Salinity / Specific Gravity in Aquariums

This article gives an overview of measuring specific gravity / salinity in aquariums.

www.reef2reef.com

The article was very helpful, thank you. What size cylinder should I order to use with the glass hydrometer? Do you think the Tropic Marin hydrometer is "good enough" or should I order a high quality device?

 

[Jay Hemdal Verified Community Expert]

The article was very helpful, thank you. What size cylinder should I order to use with the glass hydrometer? Do you think the Tropic Marin hydrometer is "good enough" or should I order a high quality device?

The Tropic Marin hydrometer is very accurate, but that is the one that seems to have been changed from many years ago, from a full range unit to one that only reads about 1.021 to 1.031, so you cannot use it for hyposalinity treatments.